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erma4kov [3.2K]
3 years ago
13

Please solve this GIVING BRAINLIEST and pls show proof!

Mathematics
1 answer:
storchak [24]3 years ago
7 0

Answer:

b

Step-by-step explanation:

to prove if NP is tangent to MN

we could prove if NPM is a right triangle

By pythagorean theorem

a^2+b^2=c^2

where a=MN=33

b=NP=180

c=MP=MQ+QP=152+33=185

so

33^2+180^2=185^2

but

1089+32400 is not equal to 34225

33489 is different from 34225

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3.<br> Find c when a = -4 and b = 2<br> a-7<br> C=-<br> b
BabaBlast [244]

Answer:

c = 15

Step-by-step explanation:

b = 2a - 7

b = 2(-4) -7

b = (-8)-7

b = (-15)

c = -(-15)

c = 15

6 0
3 years ago
What is the value of b2 - 4ac for the following equation? x(x 8) = 9
-BARSIC- [3]
If you would like to know the value of b^2 - 4 * a * c, you can calculate this using the following steps:

x * (x + 8) = 9
x^2 + 8x - 9 = 0
ax^2 + bx + c = 0

a = 1
b = 8
c = - 9

D = <span>b^2 - 4 * a * c = 8^2 - 4 * 1 * (-9) = 64 + 4 * 9 = 64 + 36 = 100

The correct result would be 100.</span>
4 0
3 years ago
In science class, Logan estimates the volume of a sample to be 42 mL. The actual volume of the sample is 48 mL. Find the percent
galina1969 [7]

Answer:

Percent of error of Logan's Estimate is 12.5%

Step-by-step explanation:

Given:

Actual Volume of sample =48 mL

Estimated Volume of sample = 42 mL

We need to find the percent errors of Logan estimate.

To calculate percent of error below are the steps.

Step 1: Subtract the Actual value from the estimated value.

Step 2: Take the absolute value of step 1

Step 3: Divide that answer by the Actual value.

Step 4: Multiply that answer by 100 and add the % symbol to express the answer as a percentage.

Now Substituting the values we get;

Step 1: To Subtract Actual Volume with Estimated Volume

Estimated Volume of sample - Actual Volume of sample = 42 - 48 = -6 mL

Step 2: Find Absolute value we get;

|-6| = 6

Step 3 : Divide that answer by the Actual volume.

\frac{6}{48}=0.125

Step 4: Multiply that answer by 100 and add the % symbol to express the answer as a percentage.

0.125\times 100 = 12.5\%

Hence Percent of error of Logan's Estimate is 12.5%

5 0
4 years ago
What is the distance between-10 and 17
Georgia [21]
27 is the correct answer
6 0
3 years ago
The amount of apples Blake harvested went from 500 lb in 2009 to 425 lb in 2010. Find the percent decrease.
HACTEHA [7]

Answer:

15%

Step-by-step explanation:

The first step is to calculate the decrease

= 500-425

= 75

The percentage decrease can be calculated as follows

= 75/500 ×100

= 0.15×100

= 15%

Hence the percent decrease is 15%

6 0
3 years ago
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